# frozen_string_literal: true

require "spec_helper"
require "split/dashboard/pagination_helpers"

describe Split::DashboardPaginationHelpers do
  include Split::DashboardPaginationHelpers

  let(:url) { "/split/" }

  describe "#pagination_per" do
    context "when params empty" do
      let(:params) { Hash[] }

      it "returns the default (10)" do
        default_per_page = Split.configuration.dashboard_pagination_default_per_page
        expect(pagination_per).to eql default_per_page
        expect(pagination_per).to eql 10
      end
    end

    context "when params[:per] is 5" do
      let(:params) { Hash[per: 5] }

      it "returns 5" do
        expect(pagination_per).to eql 5
      end
    end
  end

  describe "#page_number" do
    context "when params empty" do
      let(:params) { Hash[] }

      it "returns 1" do
        expect(page_number).to eql 1
      end
    end

    context 'when params[:page] is "2"' do
      let(:params) { Hash[page: "2"] }

      it "returns 2" do
        expect(page_number).to eql 2
      end
    end
  end

  describe "#paginated" do
    let(:collection) { (1..20).to_a }
    let(:params) { Hash[per: "5", page: "3"] }

    it { expect(paginated(collection)).to eql [11, 12, 13, 14, 15] }
  end

  describe "#show_first_page_tag?" do
    context "when page is 1" do
      it { expect(show_first_page_tag?).to be false }
    end

    context "when page is 3" do
      let(:params) { Hash[page: "3"] }
      it { expect(show_first_page_tag?).to be true }
    end
  end

  describe "#first_page_tag" do
    it { expect(first_page_tag).to eql '<a href="/split?page=1&per=10">1</a>' }
  end

  describe "#show_first_ellipsis_tag?" do
    context "when page is 1" do
      it { expect(show_first_ellipsis_tag?).to be false }
    end

    context "when page is 4" do
      let(:params) { Hash[page: "4"] }
      it { expect(show_first_ellipsis_tag?).to be true }
    end
  end

  describe "#ellipsis_tag" do
    it { expect(ellipsis_tag).to eql "<span>...</span>" }
  end

  describe "#show_prev_page_tag?" do
    context "when page is 1" do
      it { expect(show_prev_page_tag?).to be false }
    end

    context "when page is 2" do
      let(:params) { Hash[page: "2"] }
      it { expect(show_prev_page_tag?).to be true }
    end
  end

  describe "#prev_page_tag" do
    context "when page is 2" do
      let(:params) { Hash[page: "2"] }

      it do
        expect(prev_page_tag).to eql '<a href="/split?page=1&per=10">1</a>'
      end
    end

    context "when page is 3" do
      let(:params) { Hash[page: "3"] }

      it do
        expect(prev_page_tag).to eql '<a href="/split?page=2&per=10">2</a>'
      end
    end
  end

  describe "#show_prev_page_tag?" do
    context "when page is 1" do
      it { expect(show_prev_page_tag?).to be false }
    end

    context "when page is 2" do
      let(:params) { Hash[page: "2"] }
      it { expect(show_prev_page_tag?).to be true }
    end
  end

  describe "#current_page_tag" do
    context "when page is 1" do
      let(:params) { Hash[page: "1"] }
      it { expect(current_page_tag).to eql "<span><b>1</b></span>" }
    end

    context "when page is 2" do
      let(:params) { Hash[page: "2"] }
      it { expect(current_page_tag).to eql "<span><b>2</b></span>" }
    end
  end

  describe "#show_next_page_tag?" do
    context "when page is 2" do
      let(:params) { Hash[page: "2"] }

      context "when collection length is 20" do
        let(:collection) { (1..20).to_a }
        it { expect(show_next_page_tag?(collection)).to be false }
      end

      context "when collection length is 25" do
        let(:collection) { (1..25).to_a }
        it { expect(show_next_page_tag?(collection)).to be true }
      end
    end
  end

  describe "#next_page_tag" do
    context "when page is 1" do
      let(:params) { Hash[page: "1"] }
      it { expect(next_page_tag).to eql '<a href="/split?page=2&per=10">2</a>' }
    end

    context "when page is 2" do
      let(:params) { Hash[page: "2"] }
      it { expect(next_page_tag).to eql '<a href="/split?page=3&per=10">3</a>' }
    end
  end

  describe "#total_pages" do
    context "when collection length is 30" do
      let(:collection) { (1..30).to_a }
      it { expect(total_pages(collection)).to eql 3 }
    end

    context "when collection length is 35" do
      let(:collection) { (1..35).to_a }
      it { expect(total_pages(collection)).to eql 4 }
    end
  end

  describe "#show_last_ellipsis_tag?" do
    let(:collection) { (1..30).to_a }
    let(:params) { Hash[per: "5", page: "2"] }
    it { expect(show_last_ellipsis_tag?(collection)).to be true }
  end

  describe "#show_last_page_tag?" do
    let(:collection) { (1..30).to_a }

    context "when page is 5/6" do
      let(:params) { Hash[per: "5", page: "5"] }
      it { expect(show_last_page_tag?(collection)).to be false }
    end

    context "when page is 4/6" do
      let(:params) { Hash[per: "5", page: "4"] }
      it { expect(show_last_page_tag?(collection)).to be true }
    end
  end

  describe "#last_page_tag" do
    let(:collection) { (1..30).to_a }
    it { expect(last_page_tag(collection)).to eql '<a href="/split?page=3&per=10">3</a>' }
  end
end
